单词:membranacea placenta
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Though it was a bright, hot dawn outside, there were no windows in this part of the castle. Van Ritchten had to provide his own light in the form of a small lantern, which he gripped with a white- 1)
ANNOUNCER: EXPLORATIONS, a program in Special English on the Voice of America. Today Shirley Griffith and Frank Oliver tell about a famous World War Two pilot, Jimmy Doolittle. (SOUND) VOICE ONE: Jimmy Doolittle He was a scientist, an airplane engin
Researchers Say Most Deaths of Newborns Preventable 研究人员表示大多数新生儿的死亡是可以避免的 From VOA Learning English, this is Science in the News. This week, we report on research that shows most newborn baby deaths could be
Science and technology 科学技术 Blood simple 简单的输血 A small change in how babies are delivered might abolish infantile anaemia 分娩方式的简单改变可能帮助消灭婴儿贫血 An unkind cut? 争议的一剪? CHILDHOOD anaemia
Todd: So, Lucinda, you have a very natural family, I mean they're really into nature and the environment. Lucinda: Yeah, pretty much. I think they call us tree-huggers or whatever they call them now these days. Todd: Oh, tree huggers! So, do you guys
Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Imagine a baby boy. Lets call him